Quick update. Only 2 starts and some around-town driving so far (although that's always been the issue), but things seem better. I'm not saying it's 100% gone or perfect yet, but so far, a lack of many of the symptoms I had previously have built up a tiny bit of cautious optimism. If it runs like this for the rest of the week, I'll be thrilled. And I'll probably open it up again to clean the TB some more :-)